$getchat = $db->prepare("SELECT * FROM Chat ORDER BY Date DESC");
$getchat->execute();
$getchat1 = $getchat->get_result();
while($row2 = mysqli_fetch_array($getchat1)){
    $chatdisplay .= "<div style='border: 2px solid hsl(0, 100%, 50%);
-webkit-animation: rainbow 5s infinite alternate;border-left: 0px; border-
right: 0px;'><p style='margin-left: 3%'>{$row2['Steamname']}</p><img
style='margin-left: 5%; border: solid 2px black' src='{$row2['Avatar']}'><p
style='color: black; margin-left: 5%;'>{$row2['Text']}</p></div> ";
}
$getchat->close();


<div>
<?php echo $chatdisplay ?>
</div>